Grain-car door.



N0. 827,026. PATENTED JULY 24, 1906; Q

. G; H. LUTHMAN.

GRAIN GAR DOOR. APPLICATION FILED JAIL-16. 1905.

I 2 SHEETS-SHEBT 2.

link is provided with an outwardly and vices em loyed purpose CHARLES LUTHMAN, OF HAMh lllllll),

moras GRAEN-OAH noon.

Specification of Letters Patent.

Yatented July 2%,1906.

A li ti fil d January 16,1905. Serial No. 241,257.

To all who? it 77146;] (TON/(50TH? Be it known that 1, CHARLES ll. LUTHMAN, a citizen of the United States oi America, rei siding at Hammond, county of Lake, and State of Indiana, have invented certain new 1 and useful Improvements in (,rrncin (or i Doors, of which the following is a dcscrip-- l tion.

My invention belongs to that class of de- 1 in grain-cars to retain the grain in p ace and prevent, its escape through the ordinary car-door. its object is to pro- I vide a more simple, convenient, and eiiective device for the purpose than is now available. 5

To this end my invention consists in the novel construction, arrangement, and comherein shown and described,

bination of parts pointed out in the and more particularly claim.

In the drawings, reference characters indicate like or corresponding parts, Figure view of my improved car-door and its con nections, taken from the interior of the car. Fi 2 is a vertical section of the san e, taken su stantially on line 2 2 of Fig. 1. Fig. 3 is a view taken substantially on the same line, showing the door folded back and secured in such position near the top of the car. Fig. 4 is a perspective view of a corner of the preferred form of metal door, showing the details of construction. Fi 5 is a view similar to Fi 1, showin a woo en door with slight modi cations. ig. 6 is a partial section on line 6 6 of Fig. 5, showing a convenient method oi" manipulating the door while empt 'ng the car; and Fi 7 isa similar view s owing the position or the arts as the door is being folded and secure after the car is em tied. i

n the drawings, 1 represents the side oi a car; 2 2, the side, and 3 the top, of the doorframe therein.

4 represents the car-floor at the. door.

5 is a suitable door adapted .to extend across and close the lower part of the dooropening, supported against outward pressure by its ends extending by and resting in con tact with the sides 2 2.

6 6 are links pivotally near the top 0 the frame, as shown.

wherein like or similar connected at one end Each referably u wardly projected extension 7 i or a ereinarter ex lained. The links 6 are arranged utside t e end planes of the door 5, with their free end pivotally connect 1 is an elevational l ed thereto. are secured to the ends of the door, each provided with an eye 9, with which the angular "hr-c end 10 of each link pivotally engages. The point of engagement is optional; but it is prcicrably some little distance below the top oi the door, as shown, to permit added height thereto desired.

At or near the bottom of the door a supplemental door 11 is provided, which may be initially opened in discharging the car. As shown, the door 11 slides in suitable guides 12 and may be readily moved aside to draw oil a part of the grain and relieve the pressure on the door 5. The connection of the links 6 with the frame is preferably such as to permit a limited vertical movement of the door, insuring at all times a close contact of the lower edge of the door with the caniioor 4. Such construction also obviates the necessity of extreme accuracy in assembling the darts and hanging the door. As shown, the links 6 consist of rods having the upper ends bent to form a slot 13, which engages the eye in a bolt 14-. The end of the rod is then bent inward to form the extension 7 and preferably terminates in an angular section 15, which when the door is folded and secured in position rests against the frame to prevent movement of the door caused by the lateral swinging of the car. A suitable latch. 16 or equivalent means secured to the car-roof is arranged to engage the free edge of the door when the latter is folded and securely maintain the same in position, as shown in Fig. 3.

In the preferred form the latch is provided that the door with an extension l7 so formed when hastily thrown up will hrst contact with'the extension, which action will )osi; tively swin the engaging part of the is ch forward an en the same with' the' ige oi the door. When a plain or wooden door is used, a clip 18, secured to the edgc oi" the door, or an equivalent construction may be employed to securely lock the latch and door together.

In the preferred construction (shown in Figs. 1 to 4) the door is composed of corrugated or crirnped 'metal provided with end stays 19, of angleiron, to stiffen the door transversely, as well as to close the indentations to prevent leakage of grain thereby. Such other st'uieningeibs may be employed as desired, as shown at 20. The corrugations serve to stillen the door sufficiently longitudinally, and the whole results in a light As shown, suitable straps 8 8 

